For junction boxes, is an explosion-proof certification required or a CCC certification?
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For wiring boxes used for on-site wiring, explosion-proof or enhanced safety certifications are generally required. I’m not sure whether CCC certification is also necessary for such wiring boxes; please advise.
If you are a design institute, follow the specifications and meet the user’s requirements. If you are the user, follow the design requirements; as long as the design meets the specifications.
Explosion-proof electrical equipment is subject to the explosion-proof certification and production license systems; a CCC certificate is not required for the time being
Now, wiring boxes are included in the list of products subject to the explosion-proof CCC certification; if they are to be used in explosive environments, an explosion-proof 3C certificate is required